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Securities - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Realized gain (losses) | $ 0 | $ 0 | $ (106) | $ (697) |
Equity investments | 95,688 |  | 95,688 |  | $ 100,163
Corporate debt securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized cost | 81,600 |  | 81,600 |  |
Fair value | 80,000 |  | 80,000 |  |
State and municipal debt obligations |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized cost | 58,300 |  | 58,300 |  |
Fair value | 57,400 |  | 57,400 |  |
Asset-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized cost | 252,000 |  | 252,000 |  |
Fair value | $ 252,100 |  | $ 252,100 |  |

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